Spindle.



8 PATENTED MAY 5, 1908.

Y o. s. POSTER.

SPINDLE. APPLGATION FILED MAR. 1, 1908.

.have a rotary motion,

'the class referred to,

uNiTED sTATns TATENT orrrcn CHARLES S. FOSTER, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR TO FALES & IENKS MACHINE COMPANY, OF PAWTUCKET, RHODE ISLAND,

A CORPORATION.

SPINDLE Specification of Letters Patent.

Patented May 5, 1908.

Application filed March 1, 1906. Serial No. 303,623.

To all whom it may concern:

Be it known that I, CHARLES S. FOSTER, a citizen of the United tucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Spindles, of which the following is a specification.

My invention relates to new and useful irnprovements in spindles for spinning and twisting cotton, etc., and more particularly to that class ofspindles which have a knee brake, a knee brake post, and a friction finger, to extend over and be engaged by the whirl on the spindle to stop the rotation of the spindle, when the spindle is raised by'the operation of the knee brake.

The object of my invention is to improve upon the construction of the knee brake and the friction finger, as ordinarily made, and particularly to provide a finger, to be engaged by the whirl on the spindle, which will and will be held or locked in its operative position.

My invention consists in certain novel features of construction of my improvements as will be hereinafter fully described.

I have shown in the drawing a spindle of and a knee brake, and a knee brake post, and a friction finger embodying my improvements.

Referring to the drawingz-Figure l is a side view of a spindle, and of the other parts embodying my improvements. Fig. 2 is a central vertical section through the friction finger and the knee brake lever post or guide, and shows the locking spring. Fig. 3 is a plan view of the friction finger shown in Fig. l, looking in the direction of arrow a, same figure. Fig. 4 corresponds to Fig. 2, but shows the opposite position of the friction finger. Fig. 5 corresponds to Fig. 3, but shows the opposite position of the friction finger. Fig. 6 shows a modified construction of the upper side of the friction finger, and, Fig. 7 is a plan view of a part of the knee brake lever, detached, looking in the direction of arrow a, Fig. l.

In the accompanying drawing, l is the supporting case or bolster provided with the ordinaryflange 1 thereon, to rest on the top of the spindle rail, not shown, and having the external screw thread l forrthe binding nut, not shown.

The knee brake lever 3, so-termed, acts as a brake lever for the spindle, and is loosely States, residing at Pawl supported on the upper side of the flange 1 of the supporting case or bolster l, and has a central opening therethrough, see Fig. 7., through which the bolster loosely extends, as is customary. The knee brake lever 3 has the downwardly extending part or engaging end 3', to be engaged by the knee of the operator, and a weighted end 3, which acts to restore the knee brake lever 3 to its normal horizontal position, after the end 3 is released by the operator. There is an elongated opening 3 in the knee brake, see Fig. 7, for the knee brake post, which extends loosely through said opening, and acts to hold the knee brake in position, and prevent rotary movement thereof.

A leather washer 4 loosely encircles the bolster 1, and is supported upon the upper side of the knee brake lever 3, and extends between said knee brake lever and the lower surface of the whirl 5 on the spindle 6, in the usual way as is customary.

In operating the knee brake lever 3, the operator moves inwardly, or towards the bolster 1, the downwardly extending end causing the knee brake to be tilted on the flange l', and the leather washer 4 thereon brought into engagement with the underside of the whirl 5 to act as a brake for said whirl, and to apply friction thereto, and at the same time to raise the whirl 5, to cause the upper surface thereof to engage the friction finger, to be hereinafter described.

All of the above mentioned parts may be of the usual and well known construction.

I will now describe my improvements, which as above stated relate particularly to the knee brake lever, and the friction finger, which finger in its-normal position extends over the whirl and is adapted to be engaged thereby, through the movement of the knee brake, to stop the rotation of the spindle.

The friction finger 7 is preferably made with a sleeve or hub portion 7 which in this instance, at its lower end, fits loosely over the knee brake ost 8, which in this instance is made integrapl with the flange 1, and extends up therefrom upon the opposite side of the spindle from the oil receptacle Il.

The hub 7 is held on the post 8, to have a rotary motion, by a screw 9, which is screwed into a threaded hole in the post 8, and held therein by a nut I0. The upper end of the screw 9 extends loosely through an openin in the upper end of the hub 7', and the hea 9 of the screw 9 extends in a countersunk or surface 7 on the linger 7, to stop the rotarecessed portion on the 7, and has one side cu a straight edge, to en on the upper end A helically tends, in this the iinger 7, a upper end of against the u and acts to y raised .9 of t edge on the head 9 face 7 on the u rotation of the will be locked and h operative position, 5, as shown in Fig.

The linger 7 has in this therethrough in which i leather or other materi upper side of the whirl 5.

esired to move the of the p he whirl 5, toV spindle, the hub against the action of t to release the from the head 9 hub 7 is rotated from the whirl, and t site position, as sho The knee brake l an opening 3 the extends the post 8 a :linger 7. The o gated, see Fig. length to allow of the n through, when it is in i tion, orin the position that the knee brake lev een remove without removin g. 6 is shown a modified construction. extending loosely through said opening in In said figsaid knee brake lever, a hub loosely mounted is `shown with two on said post to rotate thereon, and having a ed to engage two friction finger thereon adapted to extend ecessed part of the over the upper surface of said whirl, a screw By this construcor bolt holding said hub on said post, an exH e screw 9, and of the the friction finger 7f ve position, and also position. position, as will be readily 2. The combination with a spindle suphas b of the knee of the hub 7, coiled expansion instance within er inner end o dingly hold th osition, and bearing a hub will be o move it into an Wn in Fig. 4.

ever3 has as above stated l. The combination with a spindle supoosely porting case or bolster, a spindle having a of the whirl thereon, a-knee brake lever having a pening 3 is )referably elon* central opening therethrough for the spindle e of sufficient bolster, and an opening for the knee brake ger 7 passing therelever post, and a downwardly extending en'- ts inoperative posigaging end, and a weighted end, and a leather shown in Fig. 4, so washer supported on the upper surface of er, after the spindle said knee brake lever and surrounding the d, may also be removed bolster, and adapted to engage the lower surnd also the hub 7 7 and ma upper end of the hub 7. ure, the screw head 9 straight edges, ada t straight portions on t upper end of the hub 7. tion `of the head 9 of th up er end of the h ub 7 is ocked in its operati in its inoperative understood.

The operation of my readily und In the nor spinning and brake lever 3 the position s brake lever 3 is described, by the operato 5 and spindle 6, and brin ofthe whirl into engagem upper end of the hub tion of said whirl and spindle. t off, or provided with In case itis desired to remove the spindle aight edge 7 6, the finger 7 is pressed downwardly, against the action of the spring 9, and the hub 7 spring l2 exthereof given a half rotation, to carry the iinthe hub 7 of ger 7 from the position shown in Figs. 2 and 3, nd bears at one end against the to the position shown in Figs. 4 and 5, thus the post 8 and at its other end leaving a free space for the romoval of the f the hub 7, spindle 6 and the whirl 5 thereon, and also e hub 7 in its allowing of the removal of the knee brake gainst the head lever 3, by reason of the opening 3 therein, o that when the straight all as will be understood by those skilled in engages the straight surthe art.

er end of the hub 7, any The advantages of my improvements will prevented, and it be readily appreciated by those skilled in the eld with the iinger 7 in art. The friction finger 7 will be held or extending over the whirl locked in its operative position, and may be readily moved out of the path of the whirl on instance an opening the spindle so that the spindle may be readily s secured a piece of removed.

l 7, to engage the It will be understood that the details of construction of my improvements may be finger 7 out varied if desired.

remove the The movable friction finger 7 may be used ressed down slightly, in place of the ordinary retaining hook, to e spring 12, sufficient extend vover the .whirl and prevent the spindle straight surface 7 thereon from being raised, in which case the knee of the screw 9, and then the brake 3 would be dispensed with.

y the iinger 7 away Having thus described my invention, what oppo- Iclaim as new and desire to secure by Letters Patent is face of said whirl, of a knee brake lever post pansion spring extending within said hub and acting to hold said hub and finger in a raised porting case or bolster, a spindle having a improvements will be whirl thereon, a knee brake lever having a erstood by those skilled in the art. central opening therethrough for the spindle al operation of the spindle, in bolster, and an opening for the knee brake twisting cotton, etc., the knee lever post, and a downwardly extending enand friction finger 7 will be in gaging end, and a weighted end, and a leather hown in Fig. l of the drawing. washer supported on the upper surface of stop the spindle, the said knee brake lever and surrounding the perated, as above bolster, and adapted to engage the lower surr, to raise the whirl face of said whirl, of a knee brake lever post g the upper surface extending loosely through said opening in ent with the friction. said knee brake lever, a hub loosely mounted on said post to rotate thereon, and having a and out of the path of said whirl, and a scr ew friction finger thereon adapted to extend or bolt for holding the hub of said finger, an over the upper surface of said Whirl, a screw expansion spring encircling said screw or or bolt holding said hub on said post, an exbolt within said hub, and the head of said 25 pansion spring extending within said hub and screw or bolt engaging the upper surface of acting to hold said hub and finger in a raised said hub, to hold the finger in an operative or position, and said hub having its upper end inoperative position.

recessed to receive the head of said screw or 4. The combination with a spindle supbolt, and provided with an engaging surface porting case, and a spindle having a Whirl 30 to engage an engaging surface on said screw thereon, of a finger adapted to extend over or bolt, to hold said hub and linger, and presaid whirl and having a hub, a post on vent rotary movement thereof. which said hub is loosely mounted, a screw 3. The combination with a spindle supfor holding the hub and having a head with a porting case or bolster, of a knee brake lever, fiat surface to engage the upper end of the 35 having a central openingrtherethrough for hub, a spring acting to raise the hub and the bolster, and an elongated opening therecause it to engage said screw head, to locky through for the passage of the friction finger, said finger in operative position.

and said friction finger, having a hub loosely CHARLES S. FOSTER. mounted on a stationary support, and Witnesses adapted to have a rotary movement, and be GRO. H. RICHARDSON,

moved over the upper surface of said whirl, HERBERT G. BEEDE. 

